dri2: do not conflate unbind and bindContext() failure

[mesa.git] / src / egl / drivers / dri2 / egl_dri2.c

diff --git a/src/egl/drivers/dri2/egl_dri2.c b/src/egl/drivers/dri2/egl_dri2.c
index 4fc8d40199102ac9338d2c03cdee4c0c1135a3a1..f42ba6687f59c24150326fd623d3f87793e6c47c 100644 (file)
--- a/src/egl/drivers/dri2/egl_dri2.c
+++ b/src/egl/drivers/dri2/egl_dri2.c
@@ -1768,33 +1768,22 @@ dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
    _EGLSurface *tmp_dsurf, *tmp_rsurf;
    __DRIdrawable *ddraw, *rdraw;
    __DRIcontext *cctx;
-   EGLBoolean unbind;
 
    if (!dri2_dpy)
       return _eglError(EGL_NOT_INITIALIZED, "eglMakeCurrent");
 
-   /* make new bindings */
-   if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf)) {
-      /* _eglBindContext already sets the EGL error (in _eglCheckMakeCurrent) */
+   /* make new bindings, set the EGL error otherwise */
+   if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf))
       return EGL_FALSE;
-   }
 
    if (old_ctx) {
+      __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
       old_disp = old_ctx->Resource.Display;
       old_dri2_dpy = dri2_egl_display(old_disp);
-   }
 
-   /* flush before context switch */
-   if (old_ctx)
+      /* flush before context switch */
       dri2_gl_flush();
 
-   ddraw = (dsurf) ? dri2_dpy->vtbl->get_dri_drawable(dsurf) : NULL;
-   rdraw = (rsurf) ? dri2_dpy->vtbl->get_dri_drawable(rsurf) : NULL;
-   cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
-
-   if (old_ctx) {
-      __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
-
       if (old_dsurf)
          dri2_surf_update_fence_fd(old_ctx, disp, old_dsurf);
 
@@ -1807,41 +1796,44 @@ dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
       dri2_dpy->core->unbindContext(old_cctx);
    }
 
-   unbind = (cctx == NULL && ddraw == NULL && rdraw == NULL);
+   ddraw = (dsurf) ? dri2_dpy->vtbl->get_dri_drawable(dsurf) : NULL;
+   rdraw = (rsurf) ? dri2_dpy->vtbl->get_dri_drawable(rsurf) : NULL;
+   cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
 
-   if (!unbind && !dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
-      /* undo the previous _eglBindContext */
-      _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &tmp_dsurf, &tmp_rsurf);
-      assert(&dri2_ctx->base == ctx &&
-             tmp_dsurf == dsurf &&
-             tmp_rsurf == rsurf);
+   if (cctx || ddraw || rdraw) {
+      if (!dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
+         /* undo the previous _eglBindContext */
+         _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &tmp_dsurf, &tmp_rsurf);
+         assert(&dri2_ctx->base == ctx &&
+                tmp_dsurf == dsurf &&
+                tmp_rsurf == rsurf);
+
+         if (old_dsurf && _eglSurfaceInSharedBufferMode(old_dsurf) &&
+             old_dri2_dpy->vtbl->set_shared_buffer_mode) {
+            old_dri2_dpy->vtbl->set_shared_buffer_mode(old_disp, old_dsurf, true);
+         }
 
-      if (old_dsurf && _eglSurfaceInSharedBufferMode(old_dsurf) &&
-          old_dri2_dpy->vtbl->set_shared_buffer_mode) {
-         old_dri2_dpy->vtbl->set_shared_buffer_mode(old_disp, old_dsurf, true);
-      }
+         _eglPutSurface(dsurf);
+         _eglPutSurface(rsurf);
+         _eglPutContext(ctx);
 
-      _eglPutSurface(dsurf);
-      _eglPutSurface(rsurf);
-      _eglPutContext(ctx);
+         _eglPutSurface(old_dsurf);
+         _eglPutSurface(old_rsurf);
+         _eglPutContext(old_ctx);
 
-      _eglPutSurface(old_dsurf);
-      _eglPutSurface(old_rsurf);
-      _eglPutContext(old_ctx);
+         /* dri2_dpy->core->bindContext failed. We cannot tell for sure why, but
+          * setting the error to EGL_BAD_MATCH is surely better than leaving it
+          * as EGL_SUCCESS.
+          */
+         return _eglError(EGL_BAD_MATCH, "eglMakeCurrent");
+      }
 
-      /* dri2_dpy->core->bindContext failed. We cannot tell for sure why, but
-       * setting the error to EGL_BAD_MATCH is surely better than leaving it
-       * as EGL_SUCCESS.
-       */
-      return _eglError(EGL_BAD_MATCH, "eglMakeCurrent");
+      dri2_dpy->ref_count++;
    }
 
    dri2_destroy_surface(drv, disp, old_dsurf);
    dri2_destroy_surface(drv, disp, old_rsurf);
 
-   if (!unbind)
-      dri2_dpy->ref_count++;
-
    if (old_ctx) {
       dri2_destroy_context(drv, disp, old_ctx);
       dri2_display_release(old_disp);